2942981 has 2 divisors, whose sum is σ = 2942982. Its totient is φ = 2942980.

The previous prime is 2942977. The next prime is 2943001. The reversal of 2942981 is 1892492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 586756 = 1535^2 + 766^2 .

It is a cyclic number.

It is not a de Polignac number, because 2942981 - 2² = 2942977 is a prime.

It is a super-2 number, since 2×2942981² = 17322274332722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2942281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471490 + 1471491.

It is an arithmetic number, because the mean of its divisors is an integer number (1471491).

2^2942981 is an apocalyptic number.

It is an amenable number.

2942981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2942981 is an equidigital number, since it uses as much as digits as its factorization.

2942981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 2942981 is about 1715.5118769627. The cubic root of 2942981 is about 143.3053770367.

The spelling of 2942981 in words is "two million, nine hundred forty-two thousand, nine hundred eighty-one".